Jul 15, 2016 06:33 AM EDT By Anita Valencia, UniversityHerald Reporter

"The Vampire Diaries" season 7 finale has left the viewers with a huge question mark. Will Elena return at The Vampire Diaries season 8, after Damon heard her voice?

"The Vampire Diaries" season 8 spoiler: New character known as Sibil

Vampire Diaries season 8 will welcome Sibil - an antagonist that could turn Damon into something he used to be, an evil.

The immortal Sibil is said to be a creature with the power to control people and yet, there is not many information that can tell, exactly, who she really is. However, MovieNewsGuide has come up with a theory, stating that Sibil might disguise herself as Elena to get what she wants - influencing Damon.

Sibil might appear as an evil at first but who knows in the end that she will be a sympathetic villain?

Meanwhile, Kat Graham who plays Bonnie Bennett made an announcement that season eight will be her last season, as Hollywood Reporter wrote. Fans might see Bonnie sacrificing her life to wake Elena in the 8^th season.

"The Vampire Diaries" season 8 spoiler revealed by Candice King

Reached out for comments, Candice King who plays Caroline, shared a little bit of her experience and gave hints on what could be the storyline of TVD season 8. Bonnie, Stefan and Caroline will embark on a journey to bring Damon back - which according to King, the success of their plan will depend on how fast or slow they would be.

"The Vampire Diaries" season 8 spoiler: Caroline and Stefan relationship might not be that smooth

Furthermore, King hints on the relationship between Caroline and Stefan, stating that they might have curveballs thrown at them.

"The Vampire Diaries" season 8 premiere date

The Vampire Diaries casts will appear at San Diego Comic Con on July 23. Fans should expect some answers to the fan-theories or spoilers of the TVD season 8. Vampire Diaries season 8 premiere date will be on Friday, October 21, as reported by BuddyTV.

Do you think Steroline will make a good couple again and how about Bonnie's sacrifice in The Vampire Diaries season 8?

See Now: Covert Team Inside Newsweek Revealed as Key Players in False Human Trafficking Lawsuit